remove all this crap

Conflicts:
	.hoerc
	.travis.yml
	History.rdoc
	Manifest.txt
	Rakefile
	mime-types.gemspec
	type-lists/application.txt
	type-lists/audio.txt
	type-lists/image.txt
	type-lists/message.txt
	type-lists/multipart.txt
	type-lists/text.txt
	type-lists/video.txt
add gemfile
remove useless crap from the gemspec
add Gemfile.lock to .gitignore
don't use a default proc hash here
add script to generate a marshalled cache
only include lib/mime/types.rb and lib/mime/types.marshal-data in gem
prefer to load from cache
bump version to 1.19.1.github1
add build_gem task